kube transfer to single-node host

ddns/README.md

@@ -1,6 +1,14 @@
 # DDNS Service
 
+Since we occasionally need an ipv4 address we'll make one.
+
+This creates and keeps updated `ipv4.reeselink.com`.
+
 This requires the aws cli to be installed on each node with credentials that can modify
 records in route53.
 
 <https://docs.aws.amazon.com/cli/latest/userguide/getting-started-install.html>
+
+```bash
+ansible-playbook -i ansible/inventory.yaml ddns/install_ddns.yaml
+```